TPS7B6950QDBVRQ1 - 40V 150mA Ultra-Low IQ LDO | Texas Instruments
Teilenummer: TPS7B6950QDBVRQ1 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $0.95 | $0,95 |
| 10 | $0.85 | $8,50 |
| 100 | $0.72 | $72,00 |
| 500 | $0.61 | $305,00 |
| 1.000 | $0.54 | $540,00 |
| 3.000 | $0.46 | $1.380,00 |
TPS7B6950QDBVRQ1 Übersicht
An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is only slightly higher than the output. Within the broader taxonomy, an LDO is a linear regulator, which is a subset of voltage regulators, which in turn fall under power management integrated circuits (PMICs). LDOs are favored over switching regulators in noise-sensitive applications because they introduce no switching ripple and require minimal external components.
Key features of the TPS7B6950QDBVRQ1 include 15 uA typical quiescent current, integrated short-circuit and overcurrent protection, thermal shutdown, input undervoltage lockout (UVLO), and an enable pin for power sequencing. The device offers 60 dB PSRR at 100 Hz and operates across a -40 C to +125 C ambient temperature range, with a maximum junction temperature of 150 C. The SOT-23-5 footprint occupies roughly 6 mm^2 of PCB area and exposes a thermal pad via the GND pin for board-level heat spreading.
Architecturally, the TPS7B6950QDBVRQ1 uses a high-side PNP pass element combined with a precision bandgap reference, allowing the part to regulate with very low dropout and tolerate the harsh automotive transient environment (load dump up to 40 V). The ultra-low IQ design keeps battery drain to a minimum during key-off, a critical parameter for parking-monitoring telematic control units and e-meters.
Typical applications include automotive body-control modules, infotainment standby rails, e-meter and smart-sensor always-on supplies, and industrial PLC backup-power circuits. The wide 4 V to 40 V input range also suits 24 V industrial sensor backbones and fire/smoke detector standby rails. When designing with this device, place a 1 uF ceramic input capacitor and a 1 uF to 10 uF ceramic output capacitor as close as possible to the IC pins to ensure stability and transient response. A bulk aluminum-polymer capacitor on the input further suppresses load-dump transients on long automotive wiring harnesses.
This page consolidates distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select and qualify the right LDO.
Drop-in-Alternativen für TPS7B6950QDBVRQ1 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
TPS7B6950DBVR
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TPS7B6933QDBVRQ1
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TPS7B6925QDBVRQ1
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TPS7B6950QDBVRQ1
✅ Drop-In✓ Auf Lager
$0.46 / Stück
Datenblatt ansehen →TPS7B6950DBVRG4
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TPS7B6950QDBVRQ1 Grenzwerte & elektrische Eigenschaften
| Manufacturer | Texas Instruments |
| Series | TPS7B69-Q1 |
| Ausgangstyp | Fixed |
| Ausgangsspannung | 5 V |
| Maximaler Ausgangsstrom | 150 mA |
| Eingangsspannungsbereich | 4 V to 40 V |
| Dropout-Spannung | 450 mV (typical at 100 mA) |
| Ruhestrom | 15 uA (typical at light load) |
| PSRR | 60 dB at 100 Hz |
| Betriebstemperaturbereich | -40 C to +125 C (Tj max 150 C) |
| Gehäuse | SOT-23-5 (DBV) |
| Montageart | Surface Mount |
| AEC-Q100 Qualification | Qualified (automotive grade) |
| Protection Features | Short-Circuit, Overcurrent, Thermal Shutdown, UVLO |
| Enable-Pin | Yes |
| RoHS-Status | Compliant |
TPS7B6950QDBVRQ1 Pin-Konfiguration
| Pin 1 | IN — Input supply voltage (4 V to 40 V) |
| Pin 2 | GND — Ground / thermal pad |
| Pin 3 | EN — Enable (active high) |
| Pin 4 | NC — Not connected (per datasheet) |
| Pin 5 | OUT — Regulated 5 V output |
Typische Anwendungen
TPS7B6950QDBVRQ1 ist geeignet für 6 Anwendungs: Automotive Body Control Module (BCM), Automotive Infotainment Standby Rail, Electric Meter (E-Meter) Always-On Supply, Fire and Smoke Detector Standby Supply, Industrial 24 V Sensor Backbone, Telematics Control Unit (TCU) Backup Rail.
Automotive Body Control Module (BCM)
The TPS7B6950QDBVRQ1 is well matched to BCM standby rails because of its 4 V to 40 V wide-Vin tolerance and 15 uA typical quiescent current. It can stay continuously connected to the 12 V battery without meaningful drain while powering a wake-up MCU and CAN transceiver through ignition-off periods. The 150 mA capability covers small relay drivers, sensors, and LIN nodes. AEC-Q100 qualification and integrated thermal shutdown simplify PPAP documentation. Place the part near the BCM connector to take advantage of harness-side bulk capacitance for load-dump suppression.
Empfohlen
Automotive Infotainment Standby Rail
Head-unit standby controllers need an ultra-low-IQ LDO that survives cranking transients. The TPS7B6950QDBVRQ1 provides a clean 5 V for backup memory and real-time-clock circuits at only 15 uA Iq, and its 40 V rating tolerates load-dump events far above the 12 V battery rail. Its SOT-23-5 (DBV) package drops onto existing infotainment PCB footprints designed around the TPS7B69xx-Q1 family. Designers should add a 1 uF ceramic input capacitor and a 1 uF ceramic output capacitor as close as possible to the pins to maintain PSRR at 100 Hz during AM-band interference.
Empfohlen
Electric Meter (E-Meter) Always-On Supply
Smart e-meters must operate for years from the line-derived supply while a backup supercap keeps the metrology MCU and metrology IC alive during outages. The TPS7B6950QDBVRQ1 fits this need with 15 uA Iq that preserves supercap energy, a 40 V Vin range that handles rectified 24 V industrial rails, and 150 mA headroom for the metrology SoC, isolated comms, and tamper-detection sensors. The 5 V fixed output removes the need for an external feedback divider, simplifying BOM and saving PCB area in the densely packed meter enclosure.
Empfohlen
Fire and Smoke Detector Standby Supply
Smoke and CO detectors spend years on a single 9 V or 3.6 V battery while periodically waking the MCU and piezo driver. Although the TPS7B6950QDBVRQ1 is 40 V rated for automotive use, its 15 uA Iq and 4 V minimum Vin make it equally suited to industrial detector stacks powered from 24 V alarm loops. Its integrated short-circuit and thermal protection guard against field wiring faults. Designers can use the TPS7B6933QDBVRQ1 (3.3 V) variant in the same footprint for 3.3 V MCU rails.
Empfohlen
Industrial 24 V Sensor Backbone
Factory sensors and PLC remote I/O commonly operate from 24 V industrial buses that can surge up to 36 V during inductive switching. The TPS7B6950QDBVRQ1 provides a regulated 5 V at 150 mA from such rails, allowing the use of mainstream 5 V analog front ends and digital isolators. The 450 mV typical dropout at 100 mA leaves headroom for line sags. Its SOT-23-5 footprint simplifies retrofits into legacy 24 V sensor modules where board space is constrained.
Empfohlen
Telematics Control Unit (TCU) Backup Rail
Telematics modules track vehicle location during parking events, drawing micro-amps from the battery while listening for wake events. The TPS7B6950QDBVRQ1 powers the TCU backup domain with 15 uA Iq and 40 V load-dump survival. Its small SOT-23-5 footprint fits inside the cramped TCU enclosure alongside LTE modems and GNSS receivers. The 5 V fixed output can feed an LDO-down to 3.3 V or 1.8 V for the GNSS and modem cores with minimal additional dissipation.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TPS7B6950QDBVRQ1 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | TPS7B6950DBVR | TPS7B6933QDBVRQ1 | TPS7B6925QDBVRQ1 | TPS7B6950DBVRG4 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | SOT-23-5 (DBV) | SOT-23-5 (DBV) - same | SOT-23-5 (DBV) - same | SOT-23-5 (DBV) - same | SOT-23-5 (DBV) - same |
| Output Voltage | 5.0 V | 5.0 V | 3.3 V | 2.5 V | 5.0 V |
| Input Voltage Range | 4 V to 40 V | 4 V to 40 V | 4 V to 40 V | 4 V to 40 V | 4 V to 40 V |
| Output Current | 150 mA | 150 mA | 150 mA | 150 mA | 150 mA |
| Quiescent Current | 15 uA | 15 uA | 15 uA | 15 uA | 15 uA |
| Dropout (typ @ 100 mA) | 450 mV | 450 mV | 450 mV | 450 mV | 450 mV |
| AEC-Q100 | Qualified | Not qualified | Qualified | Qualified | Not qualified |
Wichtigste Unterscheidungsmerkmale
- AEC-Q100 qualification with same package footprint as commercial grade (vs. TPS7B6950DBVR)
- 5 V fixed output in the same DBV-5 footprint as 3.3 V / 2.5 V variants (vs. TPS7B6933QDBVRQ1)
- Ultra-low 15 uA quiescent current for always-on battery domains (vs. TPS76301QDBVRQ1)
Designhinweise
Estimated: at VIN = 13.5 V (running automotive rail), VOUT = 5.0 V and IOUT = 150 mA, the TPS7B6950Q1 dissipates roughly (13.5 - 5.0) * 0.150 = 1.275 W. The SOT-23-5 package thermal resistance is approximately 200 C/W on a 1 oz. 1 square inch copper pour, giving a 255 C junction-temperature rise above ambient - far above the 150 C Tj maximum. Designers should keep continuous load below ~70 mA on minimum footprint, or use a larger copper pour / heatsink for full 150 mA operation. Always derate for worst-case VIN and ambient.
Place the 1 uF ceramic input capacitor and 1 uF to 10 uF ceramic output capacitor within 2 mm of the IN and OUT pins. Use X7R or X7S dielectrics rated for 50 V or greater on the input to survive load-dump. A bulk aluminum-polymer capacitor (22 uF to 47 uF) on the supply side of the regulator absorbs harness inductance and limits peak voltage during ISO 7637-2 pulse 1 testing. Keep the EN pin trace short to avoid noise-induced false turn-on.
Do not assume ceramic-only input capacitance is sufficient on long automotive harnesses - load-dump pulse 5a can spike above 40 V and stress the IC. Add a TVS diode (e.g. SMBJ33CA) and series resistor to limit transient energy. Avoid placing the regulator near high-dV/dt switching nodes (gate drivers, relay coils) without sufficient ground shielding, as the EN pin is high-impedance and can couple noise. Confirm output capacitor ESR remains below 200 milliohm across the operating temperature range to prevent loop instability.
Compliance-Informationen
AEC-Q100 qualified per TI product page (Q1 suffix). RoHS and REACH compliant per distributor listings. Halogen-free status not explicitly stated in verified data; marked unknown. Conflict-minerals compliance per TI policy.